<?php

/**
 * UserIdentity represents the data needed to identity a user.
 * It contains the authentication method that checks if the provided
 * data can identity the user.
 */
class UserIdentity extends CUserIdentity
{
	private $_id;
	/**
	 * Authenticates a user.
	 * The example implementation makes sure if the username and password
	 * are both 'demo'.
	 * In practical applications, this should be changed to authenticate
	 * against some persistent user identity storage (e.g. database).
	 * @return boolean whether authentication succeeds.
	 */
	public function authenticate()
	{
		$user = Usuario::model()->findByAttributes(array('usuario'=>$this->username));
		
		if ($user===null) { // No user found!
			$this->errorCode=self::ERROR_USERNAME_INVALID;
		}else if ($user->password !== md5($this->password) ) { // Invalid password!
			$this->errorCode=self::ERROR_PASSWORD_INVALID;
		} else  {// Okay!
			$this->errorCode=self::ERROR_NONE;
			$this->_id = $user->id;
			yii::app()->user->setState('userSessionTimeout', time()+Yii::app()->session->timeout );
		}
		return !$this->errorCode;
		
		
	}
	public function getId()
	{
		return $this->_id;
	}
}